If you are searching for good ways to earn rs gold, this guid is really good for you. You can train Fishing and cooking and make rs money at the same time, which makes your leveling fast and effective.
Fishing and cooking will bring you some easy earned Gp! All you need to do is start fishing. You will be needing feathers for faster lvls until you reach the tuna's with harpoon.
Trout/salmon will be valued by many early on, and will most likly have a decent price at around 20-50 gp per trout and 30-75 gp per salmon. Depending on who you sell to the price will vary alot.
Cooking them will be a evil necessary if you wish to sell them. However if you just build a stock and wait for others to get their cooking lvl up, you could make a better profit!
If you burn 25% of what you fish while cooking, you lose out on 25% profit. But if you wait and sell them for 10% less then cooked - You make 15% more! Ofcourse you will lack the cooking levels, but assuming your after the Gp's that is the better deal!
I believe lobsters until sharks in catherby will be the fastest way, and a good profit. 100 gp per raw (?) seems reasonable. Catching sharks later on will bring you 500-1000 gp per shark, it is uncertain on how much gold the people will have accumulated by then.
Best of all - No real work has to be put into fishing! If you don’t want to make rs money by yoursf, you can go to Farmer100 to buy cheap rs gold.